Improvement in carpet fabrics



J. ALLINSON. CARPET FABRIC.

N0.180,515. Patented Aug.1, 1876.

UNITED STATES PATENT JAMESA ALLIN'SON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE- HALF HIS RIGHT TO HUGH S. KEER, OF SAME PLACE. I

IMPROVEMENT IN CARPET FABRICS.

Specification forming part of Letters Patent N0. [80,515, dated August 1, 1876; application filed June 14, 1875.

To all whom it may concern:

Be it known that I, JAMES ALLiNsoN, of the city and county of Philadelphia., and

State of Pennsylvania, have invented a new and useful Improvement in Carpet Fabrics 5 and I do hereby declare the following to be a clear and exact description of the nature thereof, 4sufficient to enable others skilled in the art to which my inventionl appertains to fully understand, make, and use the same, reference being had to the accompanying drawings, making part of this specilication, in Whieh-` Y Figure 1 is a View of the face of the fabric. Fig. 2'is a sectional View of my carpet when woven with one coarse or thick Warp and with two vline Warp-threads. Fig. 3 is a sectional view of my carpet when woven with two coarse warps, but not shown in the model.

y Similar letters of reference indicate corresponding parts in the several figures.

My invention consists of a carpet fabric in which parts -of the pattern are formed by the figuring warp-threads, twilled, and the other parts-on the same face are formed by carrying the figuring Warp-threads to the opposite face, and bringing up the guring weftthreads woven plain.

Referring to the drawing, A represents the warp-threads; D, the thick weft or filling threads; a, the fine wefts, and b fine warp-threads, introduced for a purpose eX- plained hereinafter.

ln ordinary damask carpet fabrics the thick weft or filling threads are entirely concealed from sight, being embedded between the warp-,threads which form the front and back of the fabric, so that the production of a two, three, or four ply pattern requires the employment of a like number of sets of warpthreads.

I attain the effect of an additional ply without the use of an extra set of figuring Warp-threads by carrying, by means of a jacquard, all the said warps fromv one face of the fabric to the opposite face in certain parts of the pattern, and in these parts bringing the thick weft-threads to the face to aid in forming the pattern.

The warp-threads A are controlled both by a jacquard apparatus for lifting the proper duction of the thick weft-thread D, and 'by a set of ordinary harness, by which the threads are lifted in alternate sets after each insertion of the thick wefts, for the insertion of the tine weft-threads a.

To prevent the Ioating of the thick Weftthreads D, Where they are brought to the surface,and to bind the whole fabric firmly together, I employ, in the present instance, two sets of ne warp-threads, 11 which are lifted alternately prior to the insertion of the said weft-threads D.

One of the fine warps b, after passing over the weft D, passes over the fine weft a, and then under the weft D and under the 'weft a., and the other ne warp b passes in reverse order, the effect being to bind the threads D to the backing-threads, and to form a compact fabric.

It will be seen that parts of the patternvare formed by the figuring Warp-threads, twilled,

and the other parts on the same face are formed by carrying the figuring Warp-threads to the opposite face, and bringing up the figuring Weft-threads Woven plain, and that the fabric will not bag, is quite light in construction, and saves much material in warp and filling.

It will also be seen that on the face of the yfabric the ligure is damask in construction,

and the ground is similar to ingrain.

It will be evident that, although I have il- Vlustrated and described my invention as applied to a two-ply fabric, it may be applied with good results to fabrics having three or more sets of warpthreads, and that it may also be applied to shawls or other fabrics.

' Hav-ing thus described my invention, what I claim as new, and desire to secure by Letters Patent, it-

A carpet fabric in which parts of the pattern are formed by the figuring warp-threads, twilled, and the other parts on the same face are formed by carrying the figuring warpthreads to the opposite face, and bringing up thek figuring weft-threads woven plain, substantially. as and for the purpose set forth.

JAMES ALLINSON.

Witnesses:

JOHN A. WIEDERSHEIM, ALBERT H. HOEGKLEY. 

